package com.kang.redis;
import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;

/**
 * Created by Administrator on 2018/1/23.
 */

@Configuration
@EnableCaching // 启用缓存特性
public class RedisConfig extends CachingConfigurerSupport {
    // 缓存数据时Key的生成器，可以依据业务和技术场景自行定制
// @Bean
// public KeyGenerator customizedKeyGenerator() {
//   return new KeyGenerator() {
//     @Override
//     public Object generate(Object target, Method method, Object... params) {
//       StringBuilder sb = new StringBuilder();
//       sb.append(target.getClass().getName());
//       sb.append(method.getName());
//       for (Object obj : params) {
//         sb.append(obj.toString());
//       }
//       return sb.toString();
//     }
//   };
//
// }
    // 定制缓存管理器的属性，默认提供的CacheManager对象可能不能满足需要
    // 因此建议依赖业务和技术上的需求，自行做一些扩展和定制
    @Bean
    public CacheManager cacheManager(@SuppressWarnings("rawtypes") RedisTemplate redisTemplate) {
        RedisCacheManager redisCacheManager = new RedisCacheManager(redisTemplate);
        redisCacheManager.setDefaultExpiration(300);
        return redisCacheManager;
    }

    @Bean
    public RedisTemplate<String, String> redisTemplate(RedisConnectionFactory factory) {
        StringRedisTemplate template = new StringRedisTemplate(factory);
        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
        ObjectMapper om = new ObjectMapper();
        om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        jackson2JsonRedisSerializer.setObjectMapper(om);
        template.setValueSerializer(jackson2JsonRedisSerializer);
        template.afterPropertiesSet();
        return template;
    }
}
